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Orbital elements based on amateur observations | Sun-synchronous Satellites - India
This a list of satellites in sun-synchronous orbit operated by India ordered by LTDN - Local Time at the Descending Node. Names are not necessarily those by which they are known in the NORAD catalogue used by SpaceTrack.
It is a snapshot and is updated daily. The measure that results in an entry in this table is that the drift rate of LTDN (Local Time at the Descending Node) is no more than twenty four minutes each year. Some satellites may have higher drift rates but they may still be acceptable to their owners/operators. They do not appear here. On the converse, although a satellite is in a sun-synchronous orbit, it is not necessarily active.
Updated: 2023 Mar 30, 05:48 UTC
LTDN |
Satellite |
Cat no |
Desig- nation |
Orbit Epoch |
Orbit |
03:09 | IMS 1 (Indian Mini Satellite) | 32786 | 2008-021D | 2023 Mar 29 | 595 x 612 km, 96.8 min, 97°.8 | 06:00 | EOS 04 (Earth Observation Satellite 4) | 51656 | 2022-013A | 2023 Mar 29 | 527 x 529 km, 95.2 min, 97°.5 | 06:12 | Ispiresat 1 | 51657 | 2022-013B | 2023 Mar 29 | 510 x 522 km, 94.9 min, 97°.6 | 06:21 | RISat 1 (Radar Imaging Satellite) | 38248 | 2012-017A | 2023 Mar 29 | 518 x 524 km, 95.0 min, 97°.5 | 08:28 | ScatSat 1 (Scatterometer Satellite 1) | 41790 | 2016-059H | 2023 Mar 29 | 718 x 726 km, 99.2 min, 98°.3 | 09:27 | Cartosat 3 | 44804 | 2019-081A | 2023 Mar 28 | 500 x 516 km, 94.8 min, 97°.4 | 09:29 | INS 1B (Indian NanoSatellite 1B) | 41954 | 2017-008G | 2023 Mar 29 | 423 x 428 km, 93.1 min, 97°.2 | 09:29 | INS 1A (Indian NanoSatellite 1A) | 41949 | 2017-008B | 2023 Mar 29 | 420 x 426 km, 93.0 min, 97°.2 | 09:30 | Cartosat 2F | 43111 | 2018-004A | 2023 Mar 29 | 505 x 511 km, 94.8 min, 97°.4 | 09:30 | Cartosat 2D | 41948 | 2017-008A | 2023 Mar 29 | 504 x 512 km, 94.8 min, 97°.4 | 09:31 | Cartosat 2E | 42767 | 2017-036C | 2023 Mar 30 | 503 x 514 km, 94.8 min, 97°.4 | 09:33 | Cartosat 2C | 41599 | 2016-040A | 2023 Mar 29 | 498 x 517 km, 94.8 min, 97°.4 | 09:34 | EMISat (Electromagnetic Intelligence-gathering Satellite) | 44078 | 2019-018A | 2023 Mar 29 | 733 x 760 km, 99.7 min, 98°.4 | 09:34 | Cartosat 2B | 36795 | 2010-035A | 2023 Mar 29 | 624 x 643 km, 97.4 min, 97°.9 | 09:34 | Cartosat 2A | 32783 | 2008-021A | 2023 Mar 29 | 625 x 642 km, 97.4 min, 97°.9 | 09:56 | HySIS | 43719 | 2018-096A | 2023 Mar 29 | 632 x 635 km, 97.4 min, 97°.9 | 09:57 | Resourcesat 1 (IRS P6) | 28051 | 2003-046A | 2023 Mar 29 | 736 x 819 km, 100.4 min, 98°.4 | 10:10 | Carbonite-2 | 43115 | 2018-004E | 2023 Mar 29 | 472 x 486 km, 94.2 min, 97°.3 | 10:14 | Resourcesat 2 | 37387 | 2011-015A | 2023 Mar 29 | 817 x 822 km, 101.3 min, 98°.6 | 10:15 | IRS 1A | 18960 | 1988-021A | 2023 Mar 29 | 895 x 915 km, 103.1 min, 99°.0 | 10:32 | Resourcesat 2A | 41877 | 2016-074A | 2023 Mar 29 | 819 x 821 km, 101.3 min, 98°.7 | 11:02 | Shakuntala | 52173 | 2022-033S | 2023 Mar 29 | 451 x 465 km, 93.8 min, 97°.4 | 11:59 | EOS 06 (Earth Observation Satellite 6) | 54361 | 2022-158A | 2023 Mar 29 | 735 x 736 km, 99.5 min, 98°.3 | 12:02 | INS 2B (India-Bhutan Sat) | 54365 | 2022-158E | 2023 Mar 29 | 484 x 499 km, 94.4 min, 97°.4 | 12:02 | Anand | 54366 | 2022-158F | 2023 Mar 29 | 487 x 500 km, 94.5 min, 97°.4 | 17:53 | SARAL (Satellite with ARgos and ALtiKa) | 39086 | 2013-009A | 2023 Mar 29 | 783 x 786 km, 100.5 min, 98°.5 |
For the satellites that do not have formal published elements, thanks go to the radio and visual amateur satellite trackers for their observing, and particularly to Mike McCants for archiving the derived orbits.
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